VANGUARD PORTFOLIO MANAGEMENT LLC
Position in IDXX — Idexx Laboratories Inc /De
CIK 2100121
MALVERN, PA
Position in IDXX
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$2,051,284,515
-$146,190,296 QoQ
Shares Held
3,896,521
-0.4% QoQ
Ownership
4.95%
of shares outstanding
% of Portfolio
0.09%
of 13F equity value
Holder Rank
#3
of 1,286 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority
Sole 0%
Shared 0%
None 100%
Common Shares in IDXX Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Jun 30, 2026VANGUARD PORTFOLIO MANAGEMENT LLC holds $23,236,239,394 across 32 Diagnostics & Research names. IDXX ranks #3 (8.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
6,226,169 | $3,121,552,089 | |
| 2 | DHR |
Danaher Corp /De/
|
14,205,213 | $2,705,808,972 | |
| 3 | IDXX |
Idexx Laboratories Inc /De
This page
|
3,896,521 | $2,051,284,515 | |
| 4 | A |
Agilent Technologies, Inc.
|
14,442,441 | $1,918,389,438 | |
| 5 | WAT |
Waters Corp /De/
|
4,740,524 | $1,777,886,120 | |
| 6 | NTRA |
Natera, Inc.
|
5,782,640 | $1,569,697,628 | |
| 7 | IQV |
Iqvia Holdings Inc.
|
7,501,993 | $1,449,535,087 | |
| 8 | DGX |
Quest Diagnostics Inc
|
6,131,045 | $1,299,474,987 |
All Filings in IDXX
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2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $2,051,284,515 | 3,896,521 | Shares | Defined | 2026-08-13 | |
| 2026-03-31 | $2,197,474,811 | 3,910,863 | Shares | Defined | 2026-05-08 | |
| No filing history on record for this holder in this stock. | ||||||